Reverse Phone/Directoies

Reverse Phone Lookup Directory
The ultimate reverse phone lookup and directory for finding info. on any phone number through multiple sources.

AnyWho
Offers a reverse lookup for business and residential phone numbers.

WhitePages.com
A free directory that searches listed phone numbers.

InfoSpace
Similar to AnyWho -- looks up business and residential phone numbers.

Addresses.com
Similar to AnyWho and InfoSpace -- looks up listed business and residential phone numbers using the same techniques.

SuperPages
Looks up phone numbers through a yellow pages service.

Do Not Call .gov
Government registry -- attempt to limit telemarketers to people who register.